North Bound by Cynthia Sax

A mission-focused cyborg battles a captivating and dramatic distraction.

North, the second-in-command of a cyborg crew, has two priorities—he has to explore and collect data on Balazoid Minor, a small planet in their sector, and he must bring his three-being team back to the ship alive and fully functional.
When he encounters his brash, bravado-wielding female, the one being genetically designed for him, he recognizes her for what she is—a distraction that might get him and his brethren killed. He WILL claim her, but only on his terms, when his mission is complete and everyone he is responsible for protecting is safe.
Myrina the Magnificent is the best warrior on her planet and possibly the universe. She has captured an unparalleled fourteen males for her all-female tribe. Once she has secured the fifteenth male, she will be a legend. Her name will live forever. She’ll earn the undying adoration of her sisters. Glory will be hers.
The male in her sights—and in her snare—is a huge, gray-skinned, blue-eyed cyborg with a skill for war and lips designed for kissing. One emotionally charged battle is all it takes for Myrina to realize she wants North for herself. She won’t share his caresses with anyone.
Their forbidden love might be destined to be, but it won’t be easy to maintain. Myrina will have to fight her sisters, an all-powerful male-eating plant, and her cyborg’s unbending will to make North hers and hers alone.